ATSAMC20E16A-AUT - 48MHz ARM Cortex-M0+ MCU, 64KB Flash, 5V CAN-FD | Microchip
MPN: ATSAMC20E16A-AUT ✓ AktifATSAMC20E16A-AUT Ringkasan
What is a 5V Cortex-M0+ microcontroller? An ARM Cortex-M0+ microcontroller is a 32-bit RISC processor core implementing the Thumb/Thumb-2 instruction set, designed for the lowest gate count and energy efficiency in the Cortex-M family. Devices in the 5V-tolerant class integrate linear regulators and ESD-protected I/O that survive the voltage transients and EMI typical of industrial buses, making them part of the broader category of embedded microcontrollers within the semiconductor and MCU hierarchy. They sit above 8/16-bit MCUs in performance and below Cortex-M3/M4 parts in cost and DSP capability.
Key features of the ATSAMC20E16A-AUT include a single-cycle hardware multiplier, a Micro Trace Buffer for lightweight instruction trace, a Memory Protection Unit for safe partitioning of code, a dedicated 2 KB Flash block that emulates EEPROM endurance without wearing the main array, and a Peripheral Touch Controller (PTC) supporting capacitive touch sensing. The device adds a CAN-FD controller alongside the SERCOM-configurable serial channels (each can become I2C, SPI, or UART), giving designers a mix of industrial-fieldbus and user-interface peripherals on one die.
The architecture pairs the Cortex-M0+ core with a 6-channel Direct Memory Access controller, a 12-bit 1 MSPS analog-to-digital converter, two analog comparators, a 16-bit timer/counter array, and a real-time clock. Brown-out detection, watchdog timer, and power-on reset are integrated, while the on-chip voltage regulator accepts a single 2.7 V to 5.5 V rail and produces the internal 1.2 V core supply, simplifying 5V system designs that previously required external regulators for 3.3 V MCUs.
Typical applications include industrial sensor transmitters, HVAC controllers, building-automation nodes, automotive body and accessory modules (with CAN-FD), capacitive-touch human-machine interfaces, and low-cost motor-control sub-assist functions where the 5V tolerance eliminates level-shifters to 5V sensors. The wide supply range also suits battery-backed smart meters and remote I/O modules.
Designers should budget for the 48-pin TQFP's exposed-pad thermal dissipation path and observe Microchip's decoupling guidance (one 100 nF per supply pin plus a bulk 4.7 uF) to keep the internal LDO in regulation during high-current SERCOM and CAN-FD transients.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatif penggantian untuk ATSAMC20E16A-AUT — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian ATSAMC20E16A-AUT (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Operating Temperature, RoHS Status, Package, DAC.
ATSAMC20E17A-AUT
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ATSAMC20G16A-AUT
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →ATSAMC20E16A-AUT Rating Maksimal & Karakteristik Listrik
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit Single-Core |
| Maximum CPU Clock | 48 MHz |
| Program Memory Size | 64 KB (64K x 8) Flash |
| EEPROM Emulation | 2 KB independent self-programmable Flash |
| SRAM | 8 KB |
| Supply Voltage (VDDIN) | 2.7 V to 5.5 V |
| I/O Pins | 26 |
| Connectivity | I2C, LINbus, SPI, UART/USART, CAN-FD |
| Peripherals | Brown-out Detect/Reset, DMA, POR, WDT, PTC, ADC, AC, RTC |
| ADC | 12-bit, up to 1 MSPS |
| Paket | 48-TQFP (7x7 mm) |
| Suhu Kerja | -40C to +85C |
| Tipe Mounting | Surface Mount |
| Level MSL | 3 |
| Status RoHS | Compliant |
Konfigurasi Pin ATSAMC20E16A-AUT
| Pin produk 1 | PA00 — GPIO / XIN (external clock input) |
| Pin produk 2 | PA01 — GPIO / XOUT (external clock output) |
| Pin produk 3 | VDDIN — Digital supply input (2.7-5.5 V) |
| Pin produk 4 | VDDIO — I/O supply reference |
| Pin produk 5 | GND — Ground |
| Pin produk 6 | PA02 — GPIO / AIN0 (ADC input) |
| Pin produk 7 | PA03 — GPIO / AIN1 / VREFA |
| Pin produk 8 | PA04 — GPIO / AIN2 / VREFB |
| Pin produk 9 | PA05 — GPIO / AIN3 |
| Pin produk 10 | PA06 — GPIO / AIN4 |
| Pin produk 11 | PA07 — GPIO / AIN5 |
| Pin produk 12 | PA08 — GPIO / AIN6 / PTC X0 |
| Pin produk 13 | PA09 — GPIO / AIN7 / PTC Y0 |
| Pin produk 14 | PA10 — GPIO / AIN8 / PTC X1 |
| Pin produk 15 | PA11 — GPIO / AIN9 / PTC Y1 |
| Pin produk 16 | PA12 — GPIO / AIN10 / PTC X2 |
| Pin produk 17 | PA13 — GPIO / AIN11 / PTC Y2 |
| Pin produk 18 | PA14 — GPIO / AIN12 / PTC X3 |
| Pin produk 19 | PA15 — GPIO / AIN13 / PTC Y3 |
| Pin produk 20 | PA16 — GPIO / SERCOM1 PAD0 (I2C/SPI/UART) |
| Pin produk 21 | PA17 — GPIO / SERCOM1 PAD1 |
| Pin produk 22 | PA18 — GPIO / SERCOM1 PAD2 |
| Pin produk 23 | PA19 — GPIO / SERCOM1 PAD3 |
| Pin produk 24 | PA20 — GPIO / SERCOM3 PAD0 |
| Pin produk 25 | PA21 — GPIO / SERCOM3 PAD1 |
| Pin produk 26 | PA22 — GPIO / SERCOM3 PAD2 |
| Pin produk 27 | PA23 — GPIO / SERCOM3 PAD3 |
| Pin produk 28 | PA24 — GPIO / SERCOM5 PAD0 / CAN0 TX |
| Pin produk 29 | PA25 — GPIO / SERCOM5 PAD1 / CAN0 RX |
| Pin produk 30 | PA26 — GPIO / SERCOM5 PAD2 |
| Pin produk 31 | PA27 — GPIO / SERCOM5 PAD3 |
| Pin produk 32 | PA28 — GPIO |
| Pin produk 33 | PA29 — GPIO |
| Pin produk 34 | PA30 — GPIO / SWCLK (programming/debug) |
| Pin produk 35 | PA31 — GPIO / SWDIO (programming/debug) |
| Pin produk 36 | PB00 — GPIO |
| Pin produk 37 | PB01 — GPIO |
| Pin produk 38 | PB02 — GPIO |
| Pin produk 39 | PB03 — GPIO |
| Pin produk 40 | PB04 — GPIO |
| Pin produk 41 | PB05 — GPIO |
| Pin produk 42 | PB06 — GPIO |
| Pin produk 43 | PB07 — GPIO |
| Pin produk 44 | PB08 — GPIO |
| Pin produk 45 | PB09 — GPIO |
| Pin produk 46 | RESET — Reset input, active low |
| Pin produk 47 | VDDCORE — Internal core voltage decoupling (cap to GND) |
| Pin produk 48 | GND — Ground |
Aplikasi Umum
ATSAMC20E16A-AUT cocok untuk 6 aplikasis: Industrial Sensor Transmitters, Building Automation and HVAC Nodes, Automotive Body and Accessory Modules, Capacitive-Touch HMI Panels, Low-Cost Motor-Control Sub-Assist, Smart Energy and Metering Nodes.
Industrial Sensor Transmitters
The ATSAMC20E16A-AUT's 2.7 V to 5.5 V supply tolerance, 12-bit 1 MSPS ADC, and SERCOM-configurable I2C/SPI/UART channels make it well-suited for 4-20 mA and IO-Link sensor transmitters. According to the SAM C20 datasheet, the integrated CAN-FD and 5V-tolerant GPIO remove the need for external level shifters, reducing BOM cost for pressure, flow, and temperature transmitters mounted on 24V industrial loops.
Direkomendasikan
Building Automation and HVAC Nodes
The ATSAMC20E16A-AUT delivers 48 MHz Cortex-M0+ performance with 64 KB Flash, ample for BACnet/Modbus stacks, and integrates the Peripheral Touch Controller (PTC) for capacitive buttons on thermostats and access panels. According to Microchip application notes, the part's 5V tolerance interfaces directly with triac-driven HVAC loads and 24V actuator drivers, simplifying the power tree of building-automation nodes.
Direkomendasikan
Automotive Body and Accessory Modules
The ATSAMC20E16A-AUT is well-matched to non-safety body controllers, lighting nodes, and accessory modules where CAN-FD connectivity and 5V rail tolerance are required. According to the SAM C20 datasheet, the -AUT variant's -40C to +85C rating covers cabin environments, and its 26 GPIO can drive LED matrices and switch-scan matrices without external expanders, reducing module cost in seat controllers and mirror-adjust units.
Direkomendasikan
Capacitive-Touch HMI Panels
The ATSAMC20E16A-AUT integrates Microchip's Peripheral Touch Controller (PTC), supporting capacitive buttons, sliders, and wheels without an external touch IC. According to the SAM C20 datasheet, the PTC works with the on-chip DMA to offload touch scanning from the CPU, freeing Cortex-M0+ cycles for HMI logic, display driving, and BLE/Wi-Fi backhaul via SERCOM-attached modules.
Direkomendasikan
Low-Cost Motor-Control Sub-Assist
The ATSAMC20E16A-AUT's 16-bit timer/counter array with PWM and its 12-bit ADC with 1 MSPS sampling rate allow simple BLDC and stepper sub-assist loops such as small fans, pumps, and dampers. According to Microchip's motor-control collateral, the part's CAN-FD connectivity simplifies integration into coordinated multi-motor systems like HVAC air-handling units, where it serves as a peripheral node to a higher-end controller.
Direkomendasikan
Smart Energy and Metering Nodes
The ATSAMC20E16A-AUT's 5V tolerance interfaces directly with shunt resistors and Rogowski coils used in single-phase energy meters, while its low-power Run, Wait, and Sleep modes with RTC retention suit battery-backed metering. According to the SAM C20 datasheet, the 2 KB EEPROM-emulation Flash block stores tariff tables and consumption logs without wearing the main array, extending product lifetime in deployed meters.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ATSAMC20E16A-AUT — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | ATSAMC20E17A-AUT | ATSAMC20G16A-AUT |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ with op-amps |
| Max Clock | 48 MHz | 48 MHz | 48 MHz |
| Flash | 64 KB | 128 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| CAN-FD | Yes | Yes | Yes |
| Integrated Op-Amps | No | No | Yes (SAM C20G) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C |
Diferensiator Kunci
- 5V-tolerant supply and GPIO without external level shifters (vsATSAMC20E15A-MUT (32-QFN))
- Integrated CAN-FD controller without external MCP2518FD (vsATSAMC20E15A-MUT (32-QFN, no CAN-FD))
- Same-family upgrade path to 128 KB Flash without PCB rework (vsATSAMC20E17A-AUT (128 KB Flash))
Catatan Desain
Place a 100 nF decoupling capacitor on each VDDIN/VDDIO pin and a single bulk 4.7 uF ceramic on the main VDDIN rail, positioned within 3 mm of the package. Estimated: a 48-pin TQFP can demand up to 15 mA transient current when the CAN-FD and SERCOM blocks switch simultaneously; without adequate bulk capacitance the internal 1.2 V regulator droops and triggers the brown-out detector.
Route the SWDIO and SWCLK signals (PA30, PA31) with a 50-ohm-controlled impedance to the programming header, keeping them under 50 mm to avoid signal-integrity issues with the on-chip debug logic. According to Microchip's SAM C20 hardware design notes, add 4.7 kohm pull-ups on SWDIO/SWCLK if the header is removable, otherwise the debugger may fail to handshake.
Do not leave unused PTC pins floating - the Peripheral Touch Controller injects a small bias current that disturbs the touch baseline if left open. According to the SAM C20 datasheet, unused PTC channels must be tied to GND through a 100 kohm resistor or reconfigured as standard GPIO with the touch channels disabled in the PTC control register.
Estimated: at 48 MHz CPU clock and full peripheral activity, the 48-TQFP package dissipates approximately 30-40 mW, well within the junction temperature budget without a heatsink. For designs that disable unused peripherals and run the CPU at lower clocks via the DFLL48M, total active current drops below 5 mA, enabling 5V designs without thermal relief copper pours.
Informasi Konformitas
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive safety applications consider SAM C21 or SAM V71 families that include automotive-grade parts. Lead-free and halogen-free per Microchip material declaration.
